Question #N856
A circle has a radius of 5 cm. What is the area, in square centimeters, of a sector of this circle with a central angle of 72 degrees?
A. 10\pi
B. 20\pi
C. 30\pi
D. 40\pi
Correct Answer is: A
The area of a sector of a circle is given by (central angle/360 degrees) * (pi * radius^2). Plugging in the values we get (72/360) * (pi * 5^2) = (1/5) * 25pi = 5pi. Therefore, the area of the sector is 5pi square centimeters.